How to access the vertices of a procedural mesh

I clicked on the procedural mesh and succeeded in getting the section index from the face index at the clicked position.

However, the only result I want is the vertex information of the clicked face.

It contains more information than I want.

I want to get only vertex information included in the clicked side, not a large range like’Section’.

But no matter how much I search, I don’t know how.

Please help me.

Hello! Take a look at this Procedural Mesh Component in C++:Getting Started - Old UE4 Wiki

Hello! I also saw this url.
Unfortunately, in my case, I am not creating a procedural mesh from scratch, but rather copying an already created static mesh to create a procedural mesh, so there should be only one or two sections at most.
Therefore, I cannot create and manage sections directly like the contents of the url, so i need a way to select a side in a way other than the section.